<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>登录</title>
</head>
<body>
  <div>
    <form action="/do-login" method="post">
      <label>
        username:
        <input type="text" name="user" />
      </label>
      <br>
      <label>
        password:
        <input type="password" name="pass" />
      </label>
      <br>
      <button type="submit">登录</button>
    </form>
  </div>
</body>
</html>